Grade 11
A. Practical Investigation: Ratios INSTRUCTIONS 1. Answer ALL the questions 2. Show all calculations (steps), diagrams, etc. you used in determining answers. 3. Marks will be awarded for accuracy and correct conclusions. Marks: 50 1 Solve the following equation for x in terms of y: 2-3x + 2y = 0 and hence show that the ratio x:y is 1 : 1 or 2:1.
Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared